OEM 2002 Buick LeSabre Engine Control Module

2002 Buick LeSabre Engine Control Module Parts and Q&A

• Q: How to program the Engine Control Module on 2002 Buick LeSabre?

  A: Start the Engine Control Module programming process with an acquisition of the vehicle's VIN number. Through the Techline terminal users should first select Service Programming followed by Tech 2 before selecting Reprogram ECU and Off-Board Programming Adapter as the ECU location. Append the control module and Off-Board Programming Adapter to the Tech 2 while using the appropriate connector from the Off-Board Programming Adapter kit. The Service Programming Request Information function on the Tech 2 opens communication with the control module to obtain the access code before exiting this function and uninstalling the Off-Board Programming Adapter. The next step involves connecting the Tech 2 to the Techline terminal while ensuring the device is powered on and entering the specific VIN of the vehicle. Look for the database connection message on the Techline terminal before identifying the required programming type and selecting an appropriate calibration file for all secure connections. You will see a summary screen through the terminal interface which you must confirm before the terminal loads all calibration files to the Tech 2. Complete the download process by turning Off the Tech 2 followed by disconnecting the terminal from the Techline connection then reattaching it to the Off-Board Programming Adapter before starting the Service Programming selection. The Off-Board Programming Adapter requires users to keep it ON during any unsuccessful programming attempts while ensuring connection security along with updated Techline software before another attempt at control module reprogramming. Failure to reprogram the control module requires a new replacement of the module. To finish the process select Program on the Tech 2 then leave Service Programming after the download completes before shutting off the Off-Board Programming Adapter.